CN109861430A - The motor of fluid cooling and fluid insulation - Google Patents
The motor of fluid cooling and fluid insulation Download PDFInfo
- Publication number
- CN109861430A CN109861430A CN201811440591.9A CN201811440591A CN109861430A CN 109861430 A CN109861430 A CN 109861430A CN 201811440591 A CN201811440591 A CN 201811440591A CN 109861430 A CN109861430 A CN 109861430A
- Authority
- CN
- China
- Prior art keywords
- motor
- fluid
- bare conductor
- stator
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/08—Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/30—Windings characterised by the insulating material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/197—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/22—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of hollow conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
Abstract
Motor includes rotor, stator, the multiple bare conductors for forming at least one of the stator and the rotor multiple windings and the fluid with multiple outer surface direct physical contacts of the multiple bare conductor.Wherein, the fluid is to be electrically insulated and provide direct fluid cooling, to provide the cooling to the multiple bare conductor and the electrical isolation between the continuous bare conductor in the multiple bare conductor.
Description
Technical field
Embodiment of the disclosure is generally related to motor, relates more specifically to the cooling based on fluid of motor.
Background technique
Motor is motor, generator and other calutron (such as magnetic bearing, electromagnet, actuator and vortex systems
Dynamic device) general name.Electrical power conversion is machine power by motor, and machine power is converted to electric power by generator.Motor is general
Including rotor, stator and conductor winding.Conductor is by least one electrical insulator.Conductor is isolated from each other simultaneously by electrical insulator
It is isolated with the other component of motor.
As it is necessary to have the motors of the torque of increase and power density for technological progress.The torque and power density of motor
Increase can by optimization design of electrical motor, using for excellent material manufacturing of electric machines, use advanced manufacturing process or right
Effective cooling of motor is to realize.
In general, various methods and designed for cooling motor and its part.In these techniques, usually using a kind of or more
Kind coolant, such as air, liquid (for example, oil), gas or fuel.For example, a kind of method is related to blowing air in motor
The heart.Another method is related to using the cooling motor of liquid.Liquid is cooling to help to create compact design of electrical motor, therefore liquid is cooling
It is preferred for high power applications.
In general, cooling for liquid, cooling collar can be wrapped in the outside of stator.Cooling collar includes aluminum extruded
Part, the aluminum extrusions are looped around the outside of stator and have the channel for passing through for liquid coolant.This design is than empty
The preferably cooling stator of gas, but the bad thermal conductivity at least by thermal conductivity and stator lasmination between cooling collar and stator
Limitation.Another conventional liquid cooling method transmission cooling fluid passes through the slit in stator lasmination or incision stator lasmination
In.Another conventional liquid cooling method is wet process stator cooling means.In wet process stator cooling means, rotor is sealed to
Completely cut off with stator, and stator is immersed in the liquid coolant of flowing.
However, due to using electrical insulator, needed for the conventional chilling method including above-mentioned cooling means possibly can not provide
Cooling effect.
Therefore, it is necessary to improved cooling and insulating methods.
Summary of the invention
According to one embodiment, a kind of motor is proposed.The motor includes rotor, stator, forms the stator and described
Multiple bare conductors of multiple windings at least one of rotor and direct with multiple outer surfaces of the multiple bare conductor
The fluid of physical contact wherein the fluid is electrical isolation, and provides cooling to the direct fluid of the multiple bare conductor
And the electrical isolation between the continuous bare conductor of the multiple bare conductor.
According to another embodiment, a kind of motor is proposed.The motor includes stator, forms multiple windings in the stator
Multiple bare conductors and fluid with multiple outer surface direct physical contacts of the multiple bare conductor, wherein the fluid
It is electrical isolation, and offer is to the direct fluid cooling of the multiple bare conductor and in the continuous naked of the multiple bare conductor
Electrical isolation between conductor.
A kind of motor of technical solution 1., the motor include:
Rotor；
Stator；
Multiple bare conductors, the multiple bare conductor formed at least one of the stator and the rotor it is multiple around
Group；And
Fluid, multiple outer surface direct physical contacts of the fluid and the multiple bare conductor, wherein the fluid is
Electrical isolation, and direct fluid that the multiple bare conductor is provided it is cooling and the multiple bare conductor continuous bare conductor it
Between electrical isolation.
The motor as described in technical solution 1 of technical solution 2., further comprises multiple slits, wherein the multiple slit
In a slit include multiple support constructions, the multiple support construction is configured to mechanically keep and maintain the multiple
Really distance quantitative between continuous bare conductor in bare conductor.
The motor as described in technical solution 2 of technical solution 3. further comprises the institute being formed in the multiple slit
Multiple gaps between multiple support constructions are stated, wherein the multiple gap maintains the continuous bare conductor in the multiple bare conductor
Between the determining amount distance, and wherein the multiple gap filling has the fluid.
The motor as described in technical solution 2 of technical solution 4., further comprise be formed in a part of the stator with
The gap between a support construction in the multiple support construction, and wherein the gap filling has the fluid.
The motor as described in technical solution 1 of technical solution 5., wherein the multiple winding includes multiple heap lap winding and more
A End winding, the and wherein motor further comprises shell, the shell be configured to encapsulate the multiple end around
Group simultaneously accommodates the fluid to provide the direct physical contact between the multiple End winding and the fluid.
The motor as described in technical solution 5 of technical solution 6., further comprises core, and wherein the shell from institute
The first outer rim for stating core extends to the first inner edge to surround multiple ends of the End winding.
The motor as described in technical solution 1 of technical solution 7., further comprises container, and the rotor and described fixed
One or two of son is arranged in the container, wherein one in the container and the rotor and the stator or
Two restriction internal capacities, and the internal capacity is filled with the fluid.
The motor as described in technical solution 7 of technical solution 8., wherein the container is configured to accommodate the fluid to mention
For the physical contact of the fluid and the multiple outer surface of the multiple bare conductor.
The motor as described in technical solution 7 of technical solution 9., wherein the container is configured to rotor described in Fluid Sealing
With one or both of the stator to completely cut off with the remaining part of the motor.
The motor as described in technical solution 1 of technical solution 10., wherein the fluid further provides for the multiple bare conductor
With the insulation between multiple conductive components in the motor.
The motor as described in technical solution 1 of technical solution 11., wherein the fluid further provides for naked leading the multiple
The multiple bare conductor and multiple magnetic fluxs between at least one of body and multiple electric insulation parts and in the motor
Electrical isolation between load bearing component.
The motor as described in technical solution 1 of technical solution 12., wherein the fluid include one of liquids and gases or
Two kinds.
The motor as described in technical solution 1 of technical solution 13., wherein the feature of the fluid is that dielectric strength is equal to or greatly
In 15 kvolts/millimeter and specific heat capacity is equal to or more than 1100 joule/kilogram Kelvins.
The motor as described in technical solution 1 of technical solution 14., wherein the multiple bare conductor includes solid bare conductor in
At least one of empty bare conductor.
The motor as described in technical solution 1 of technical solution 15., wherein the rotor includes:
Along the cavity of the length of the rotor；And
Rotor joint institution, the rotor joint institution are configured to recycle the fluid by the cavity.
The motor as described in technical solution 1 of technical solution 16., wherein the motor has radial flux motors topology, axis
To at least one of flux electric machine topology and transverse flux motor topology.
The motor as described in technical solution 1 of technical solution 17., wherein the multiple winding include around tooth winding and distribution around
One or both of group.
A kind of motor of technical solution 18., the motor include:
Stator；
Multiple bare conductors, the multiple bare conductor form multiple windings in the stator；And
Fluid, multiple outer surface direct physical contacts of the fluid and the multiple bare conductor, wherein the fluid is
Electrical isolation, and continuous bare conductor cooling to the direct fluid of the multiple bare conductor and in the multiple bare conductor is provided
Between electrical isolation.
Detailed description of the invention
After reference attached drawing reads following detailed description, it is better understood with these and other spies of the embodiment of the present invention
Sign and aspect, in the accompanying drawings, identical component in identical all attached drawings of symbology, in which:
Fig. 1 is the signal diagram of motor according to an embodiment of the invention；
Fig. 2 is an example of the ferromagnetic core part referred in Fig. 1；
Fig. 3 is the cross section of the motor referred in Fig. 1 according to an embodiment of the present disclosure；
Fig. 4 is the expanded view of the part of the motor referred in Fig. 1 according to an embodiment of the invention；
Fig. 5 is that a part of the ferromagnetic core part referred in Fig. 1 is painted figure；
Fig. 6 is the expanded view of a part of the motor referred in Fig. 1 according to an embodiment of the invention；
Fig. 7 is that a part of motor according to an aspect of the present invention is painted expression；
Fig. 8 is the radial cross-section figure of the motor including container according to an aspect of the present invention；
Fig. 9, which is shown, to be formed the hollow conductor of winding in the motor that can be used for referring in Fig. 1 and is painted figure；
Figure 10 show it is according to an embodiment of the invention have axial-flux electric machine topology, around tooth winding and distribution
The motor of winding schematically illustrates；
Figure 11 shows the schematic table of the motor with transverse flux motor topology of some embodiments according to the disclosure
Show；
Figure 12 is the cross section according to the motor including external rotor and internal stator of some embodiments of the disclosure；With
And
Figure 13 is shown according to one embodiment of the disclosure with radial flux motors topology and around the electricity of tooth winding
Machine schematically illustrates.
Specific embodiment
Unless specifically stated, otherwise technical and scientific term as used in this specification and of the art one
As meaning well known to technical staff it is identical.Term "one" and "an" are not offered as quantity limitation, but indicate there is ginseng
Examine at least one in item.Term "or" indicate inclusive meaning and indicate one in listed item, it is some or complete
Portion.This specification indicates to cover the project hereafter listed using "include", "comprise" or " having " and its variant and its is equivalent
Object and other project.
As previously mentioned, conventional chilling method can be at least partly due to using the electrical insulator that conductor is isolated with coolant
Required cooling effect can not be provided.Therefore, electrical insulator is used as the barrier of the heat transmitting between conductor and coolant.In conductor
The high-fire resistance of each layer of upper addition and electrical insulator at different levels and electrical insulator further reduced the effective of conventional chilling method
Property.What embodiment of the disclosure solved to be previously mentioned in this field by using the direct cooling of electrical insulation fluids offer bare conductor
Disadvantage.
As used herein, term " bare conductor " refers to that the outer surface without solid insulating layer and conductor directly exposes
The conductor of external environment around conductor.For example, copper conductor is not by mica around band, cloud when winding is made using copper conductor
Mother's ground connection cornice, conductive strips, stress grading band, armouring/protection band or any other solid insulator as known in the art cover
Lid.
Fig. 1 is the signal diagram of motor 100.Motor 100 for example may include motor, generator or calutron.It answers
Note that the configuration and design of motor 100 shown in Fig. 1 are examples, and the configuration and design of motor 100 should not necessarily be limited by Fig. 1.
Motor 100 includes rotor 102, stator 104 and the multiple windings 106 formed using multiple bare conductors 108.Below
In, term " winding " and " multiple windings " use in which can be interchanged.In addition, hereinafter, term " bare conductor " and " multiple naked to lead
Body " uses in which can be interchanged.Winding 106 is formed at least one of rotor 102 and stator 104.Match what is be presently envisaged by
In setting, winding 106 is formed in stator 104.In alternative embodiments, winding 106 can be formed in the rotor of motor (each figure
In be not shown).
Motor 100 further comprises fluid 110.Fluid 110 and the direct physics in multiple outer surfaces 112 of bare conductor 108 connect
Touching, wherein it is cooling to provide direct fluid for fluid 110, and is electrical isolation, with provide multiple bare conductors 108 cooling and
The electrical isolation between continuous bare conductor in multiple bare conductors 108.Specifically, bare conductor 108 is immersed in fluid 110.Fluid
110 provide the external environment of bare conductor 108, so that the outer surface 112 of bare conductor 108 and 110 direct physical contact of fluid.Fluid
110 can flow through motor 100 and leave motor 100 continuously into motor 100, cooling to provide direct fluid.Fluid 110
Flowing through motor 100 makes that fluid 110 is heated and bare conductor 108 is cooled, to generate the fluid (not shown) of heating.From
After opening motor 100, the fluid of heating can cycle through the radiator (not shown) outside motor 100.Radiator example
It such as may include heat exchanger, fin.The fluid circulation of heating can cause heat to dissipate by radiator, to generate
Cooling fluid (not shown).Cooling fluid can be used as fluid 110 and recycle in motor 100.
As non-limiting examples, fluid 110 includes mineral oil, 3MTMFluorinertTM electric liquid, such as FC-
3283, FC-40 and FC-43.As another non-limiting examples, fluid 110 may include 3MTM NovecTMEngineering fluid, it is all
Such as Novec 7500 and Novec7600.The feature of fluid 110 is one of the following or multiple: high dielectric strength, high specific heat
Hold, high volume resistivity, and be electrical isolation, to provide the cooling to bare conductor 108 and provide the company in bare conductor 108
Electrical isolation between continuous bare conductor.High dielectric strength refers to the dielectric strength equal to or more than 15 kvolts/millimeter.High specific heat capacity is
Refer to the thermal capacity for being equal to or more than 1100 joule/kilogram Kelvins.High volume resistivity includes being equal to or more than 108Ohm
Centimetre volume resistivity.
In addition, the feature of fluid 110 can be highly corrosion resistant, low dynamic viscosity, high dielectric constant and higher boiling temperature.
High dielectric constant includes the dielectric constant that value is equal to or more than 5/1 kHz.Low dynamic viscosity is for example including less than 1.65*10-2
The viscosity of pascal second.Higher boiling is for example including the boiling point for being greater than 110 degrees Celsius.
In addition, in some embodiments, fluid 110 can be provided in bare conductor 108 and (not show in Fig. 1 with electric insulation part
Between out) and in the bare conductor 108 in motor 100 and being electrically insulated between magnetic flux load bearing component (not shown in figure 1).Separately
Outside, fluid 110 can also provide being electrically insulated between the conductive component and bare conductor of motor 100.As non-limiting examples,
Electric insulation part for example may include the support construction for bare conductor 108, wedge piece etc..Equally, as non-limiting reality
Example, magnetic flux load bearing component may include parts of tooth and break iron part etc..In addition, conductive component may include axis, motor 100
Shell, bearing etc..
Motor 100 can further comprise multiple slits 118 for keeping bare conductor 108.In the embodiment in figure 1, fixed
Son 104 includes slit 118.In alternative embodiments, the rotor of motor may include the slit for keeping bare conductor 108.?
In the embodiment of Fig. 1, stator 104 includes ferromagnetic core part 120, and slit 118 is formed in ferromagnetic core part 120.It should be noted that certain
A little motor such as slotless electric machines may not include the slit for keeping bare conductor 108.In such embodiments, 108 shape of bare conductor
At air gap winding (not shown).
Referring now to Fig. 2, the example of ferromagnetic core part 120 is shown.Fig. 2 is according to the ferromagnetic of one embodiment of the disclosure
The perspective view 200 of core 120.Fig. 2 shows the slits 118 in ferromagnetic core part 120, for ease of describing without rotor 102
With winding 106.The feature of ferromagnetic core part 120 is length 122, the first outer rim 124, the second outer rim 126, the first inner edge 128 and the
Two inner edges 202.Slit 118 extends along the length 122 of ferromagnetic core part 120.It should be noted that in certain motors, slit 118 can be with
It is not formed in ferromagnetic core part 120.Although should be noted that motor 102 includes ferromagnetic core part 120, certain motor (such as superconductions
Motor) it may include including core made of one or both of material of ferromagnetic material and nonferromagnetic material.
It is stacked in slit 118 with Fig. 3, a part 302 of bare conductor 108 to form heap lap winding referring now to fig. 1
302 (being shown in FIG. 3), and the outside of ferromagnetic core part 120 is arranged in form end in another part 130 of bare conductor 108
Winding 130 (is shown in FIG. 1).For example, End winding 130 extends beyond in the first outer rim 124 and first of ferromagnetic core part 120
Edge 128.Similarly, End winding 130 extends beyond ferromagnetic core part 120 the second outer rim 126 and the second inner edge 202 are (in Fig. 2
It shows).It should be noted that heap lap winding 302 and End winding 130 are collectively known as winding 106.
In some embodiments, one or more of slit 118 includes multiple support constructions, the multiple support construction
It is configured to mechanically keep and maintain distance really quantitative between the continuous bare conductor in bare conductor 108.In Fig. 4 and Fig. 5
Show the expanded view of the part 304 containing slit 118 of motor 100.
Referring now to Fig. 4, the expanded view of the part 304 of the motor 100 according to some embodiments of the disclosure is shown
400.In the configuration being presently envisaged by, the part 304 of motor 100 is the part of stator 104, and specifically ferromagnetic core part
120 a part, referring to Fig. 1 to Fig. 3.
In the configuration being presently envisaged by, slit 118 includes column 401.In the exemplary embodiment shown in Fig. 4, slit
118 include two support constructions 402,404.It should be noted that although slit 118 is shown as including two support constructions 402,404,
But in certain embodiments, column may include more or less than two support constructions.Support construction 402,404 can be conductive
Or it is nonconducting.Described in Fig. 3 as previously explained, support construction 402,404 is configured to mechanically keep and maintains bare conductor 108
In continuous bare conductor between quantitative distance (being shown in FIG. 5) really.For ease of understanding, in Fig. 4, the first support knot
Structure 402 is shown without bare conductor 108, and the second support construction 404 is shown as keeping bare conductor 108.
Multiple gaps 406 can be formed between support construction 402,404.For example, as shown in figure 4, gap 406 is formed in
Between first support construction 402 and the second support construction 404.Gap 406 maintains really quantitative between continuous bare conductor 108
Distance (being shown in FIG. 5).
Motor 100 can also comprise the part for being formed in one or more of support construction 402,404 with stator 104
Gap 408 between 304.For example, gap 408 is formed in the first support construction 402 and motor in the configuration being presently envisaged by
Between 100 part 304.Slit 118 is immersed in fluid 110, so that gap 406,408 and by really quantitative between bare conductor
Distance generate gap filling have fluid 110.Therefore, the arrangement of support construction 402,404, gap 408 and bare conductor 108
Between really quantitative distance make outer surface 112 and 110 direct physical contact of fluid of bare conductor 108.
With continued reference to Fig. 4, reference number 410 is shown according to some embodiments of the present disclosure for placing wedge piece
The gap 410 of (not shown).Bare conductor 108 (being not shown in Fig. 4) can be sealed in support construction 402,404 and by wedge piece
In corresponding slit 118.In certain embodiments, the fluid 110 between the other sealed wedged part of wedge piece and slit 118 is to mention
For being used to form the outer surface 112 of a part of the bare conductor 108 of heap lap winding 302 and the direct physical contact of fluid 110.Cause
This, wedge piece prevents fluid 110 from leaking from slit 118.A part of ferromagnetic core part 120, the part packet are shown referring to Fig. 5
Include the wedge piece on the bare conductor being mounted in slit 118.
Referring now to Fig. 5, show a part of the ferromagnetic core part 120 according to some embodiments of the disclosure is painted figure
500 to show the wedge piece 502 on the bare conductor being mounted in slit 118 108.In the 5 embodiment of figure 5,108 He of bare conductor
Wedge piece 502 is arranged in the subset of slit 118, with two circle of every coil formed in heap lap winding 302, and wedge piece 502
It is arranged on bare conductor 108 later.
Referring now to Fig. 6, the expanded view of the part 304 of motor 100 according to another embodiment of the present disclosure is shown
600.In the embodiment shown in Fig. 6, slit 118 include support construction 606,608,610,612,614,616,618,620,
622,624 two column 602,604.Each of column 602,604 include five support constructions.Specifically, first row 602 includes
Support construction 606,608,610,612,614, and secondary series 604 includes support construction 616,618,620,622,624.
Support construction 606,608,610,612,614,616,618,620,622,624 is configured to mechanically keep naked to lead
Body 108.In addition, support construction 606,608,610,612,614,616,618,620,622,624 is configured to remain continuous naked
Really distance 626 quantitative between conductor.For example, support construction 616 and 618 maintains the bare conductor kept by support construction 616
626 at a distance from 108' is really quantitative between the bare conductor 108 " kept by support construction 618.
Referring back to Fig. 1, motor 100 can further comprise one or more shells 132,134, one or more of shells
Body is configured to close End winding 130 and accommodates a part of fluid 110.In the configuration being presently envisaged by, shell 132 is from
One outer rim 124 extends to the first inner edge 128 of ferromagnetic core part 120 to encapsulate End winding 130.Similarly, shell 134 from second
Outer rim 126 extends to the second inner edge 202 of ferromagnetic core part 120 to encapsulate End winding 130.Shell 132,134 be it is hollow and
And it is filled with fluid 110.Shell 132,134 provides outer surface 112 and the fluid 110 of End winding 130 filled with fluid 110
Between direct physical contact.Described in Fig. 4 and Fig. 5 as previously explained, slit 118 is filled with fluid 110, and wedge piece 502
(being shown in FIG. 5) prevents fluid 110 from leaking.Therefore, when shell 132,134 is configured to provide fluid 110 and is used to form
When the direct physical contact of the outer surface 112 of the bare conductor 108 of End winding 130, slit 118 and gap 406,408 are (in Fig. 4
In show) be configured to provide the direct physical contact between the outer surface 112 of heap lap winding 302 and fluid 110.
In order to make it easy to understand, showing a part of the description shell 132 of motor 100 in Fig. 7.
Referring now to Fig. 7, show a part of the motor 100 according to one embodiment of the disclosure is painted expression
700.Specifically, Fig. 7 shows a part for being connected to the ferromagnetic core part 120 of shell 132, and is mounted on ferromagnetic core part 120
Slit 118 in bare conductor 108.As shown in fig. 7, bare conductor 108 is arranged in slit 118, so that bare conductor 108 will not that
This contact.Shell 132 is filled with fluid 110 to provide the direct object between the outer surface 112 of End winding 130 and fluid 110
Reason contact.
In certain embodiments, shell 132,134 can be replaced by container shown in fig. 8.Specifically, in some implementations
In example, container (showing in Fig. 8 and Fig. 3) can be provided so that fluid 110 to be encapsulated in motor.
Referring now to Fig. 8, the radial direction of the motor 802 including container 804 of one embodiment according to the disclosure is shown
Cross-sectional view 800.The component of motor 802 and corresponding reference number keep being similar to the component in Fig. 1 showing and using and phase
Reference number is answered, the difference is that the motor 802 of Fig. 8 does not include shell 132,134.In embodiment as shown in fig. 8, motor
802 include container 804 to accommodate fluid 110.Container 804 limits internal capacity 805, and the internal capacity is filled with fluid 110.
Therefore, container 804 is configured to accommodate fluid 110 to provide the physical contact of the outer surface 112 of fluid 110 and bare conductor 108.
Container 804 be configured to one of fluid seal rotor 102 and stator 104 or both with the remaining part with motor 802 every
Absolutely.
In the configuration being presently envisaged by, stator 104 is arranged in container 804, and container 804 is arranged in rotor 102
It is external.As shown in figure 8, container 804 extends along the length 122 of ferromagnetic core part 120, and further extend over End winding
130 length, to encapsulate entire stator 104.For example, ferromagnetic core part 120, slit 118, heap lap winding 302, End winding 130
It is arranged in container 804 with wedge piece (being not shown in fig. 8).In alternative embodiments, rotor can be set in container 804
In.Container 804 includes the entrance 806 for flowing into for fluid 110 and the outlet 808 for flowing out for fluid 110.
In some embodiments, winding 106 may include naked solid conductor.In alternative embodiments, winding 106 can wrap
Include naked hollow conductor.What Fig. 9 showed the hollow conductor 902 that can be used to form winding 106 is painted Figure 90 0.
Motor 100 can have in radial flux motors topology, axial-flux electric machine topology and transverse flux motor topology
At least one.In some embodiments, motor 100 includes radial flux topology.In addition, the winding 106 of motor 100 can wrap
It includes around one or both of tooth winding and Distributed Winding.Figure 10 to Figure 12 is shown with different types of topology and winding
The example of motor.
Figure 10, which is shown, has axial-flux electric machine topology, around 1004 and of tooth winding according to one embodiment of the disclosure
The motor 1002 of Distributed Winding 1006 schematically illustrates 1000.As shown in Figure 10, a part 1008 of motor 1002 includes point
Cloth winding 1006, and another part 1010 of motor 1002 includes around tooth winding 1004.Motor 1002 includes multiple teeth portion
1012.Teeth portion 1012 includes slit 118.Teeth portion 1012 is formed in similar to the support construction 1014 of support construction 402,404
In slit 118.Bare conductor 108 is mounted in support construction 1014.As shown in Figure 10, support construction 1014 keeps bare conductor and ties up
Hold distance really quantitative between bare conductor 108.Motor 1002 is encapsulated in the container 1016 filled with fluid 110.Due to
Motor 1002 is arranged in container 1016, so 112 direct physical contact of outer surface of fluid 110 and bare conductor 108.
Figure 11 shows showing for the motor 1102 with transverse flux motor topology of some embodiments according to the disclosure
Expectation shows 1100.As shown in figure 11, motor includes rotor 1104 and stator 1106.Stator 1106 includes multiple support constructions 1108
To keep bare conductor 108 and maintain distance really quantitative between bare conductor 108.In addition, motor 1102 include container 1110 with
It accommodates fluid 110 (being not shown in Figure 11), and making can be direct between the outer surface 112 of bare conductor 108 and fluid 110
Physical contact.Container 1110 seals stator 1106 to completely cut off with the other component of rotor 1104 and motor 1102.
The embodiment being discussed herein be related to include single rotor and single stator motor.However, in the scope of the present disclosure
It is interior, also contemplate the motor with multiple rotors and multiple stators.It is fixed including external rotor and inside to also contemplated in the disclosure
The other configuration of the motor of son.2 show the example of the motor including internal stator and external rotor referring to Fig.1.
Figure 12 is the motor including external rotor 1202 and internal stator 1204 according to some embodiments of the disclosure
1201 cross section 1200.In the motor 1201 of Figure 12, both rotor 1202 and stator 1204 include having bare conductor 108
Winding 106.Therefore, both rotor 1202 and stator 1204 include slit 118 and the support construction being formed in respective slots (
It is invisible in Figure 12).Support construction keeps bare conductor 108 to form winding 106 in rotor 1202 and stator 1204.In addition,
Support construction is configured to maintain distance really quantitative between bare conductor 108.In addition, in the motor 1201 of Figure 12, rotor
Both 1202 and stator 1204 respectively include container 1208,1210.The container 1208 of rotor 1202 and the container of stator 1204
Both 1210 limit internal capacity to accommodate fluid 110 and provide between the outer surface 112 of bare conductor 108 and fluid 110
Direct physical contact.Container 1208,1210 seals rotor 1202 to completely cut off with stator 1204, and vice versa.In addition, container
1208,1210 rotor 1202 and stator 1204 are sealed to completely cut off with the remaining part of motor 1201.Since rotor 1202 includes
Winding 106, so rotor 1202 is connected to rotor joint institution.Rotor 1202 includes the cavity along the length of rotor 1202
1212.Specifically, container 1208 includes the cavity 1212 along the length of rotor 1202.Cavity 1212 is filled with fluid 110.Turn
Sub- joint institution is configured to circulate fluid through cavity 1212.
Figure 13, which is shown, has radial flux motors topology and around tooth winding 1304 according to one embodiment of the disclosure
Motor 1302 schematically illustrate 1300.Motor 1302 includes multiple teeth portion 1306 and multiple slits 1308.It is tied similar to support
The support construction 1310 of structure 402,404 is formed in slit 1308.Bare conductor 108 is mounted in support construction 1310.Such as Figure 13
Shown, support construction 1310 keeps bare conductor 108 and maintains distance really quantitative between bare conductor 108.Motor 1302 is wrapped
It is enclosed in the container 1312 filled with fluid 110.Since motor 1302 is arranged in container 1312, so fluid 110 is led with naked
112 direct physical contact of outer surface of body 108.
Although certain features of the disclosure only have shown and described herein, those skilled in the art will expect
Many modifications and variations.It is to be understood, therefore, that appended claims be intended to cover fall into the true spirit of the disclosure it is all this
Class modifications and variations.
Claims (10)
1. a kind of motor, the motor include:
Rotor；
Stator；
Multiple bare conductors, the multiple bare conductor form multiple windings at least one of the stator and the rotor；
And
Fluid, multiple outer surface direct physical contacts of the fluid and the multiple bare conductor, wherein the fluid is electric exhausted
Edge, and the direct fluid that provides the multiple bare conductor is cooling and between the continuous bare conductor of the multiple bare conductor
Electrical isolation.
2. motor as described in claim 1 further comprises multiple slits, wherein a slit in the multiple slit
Including multiple support constructions, the multiple support construction is configured to mechanically keep and maintain the company in the multiple bare conductor
Really distance quantitative between continuous bare conductor.
3. motor as claimed in claim 2 further comprises the multiple support knot being formed in the multiple slit
Multiple gaps between structure, wherein the multiple gap remains described true between the continuous bare conductor in the multiple bare conductor
Quantitative distance, and wherein the multiple gap filling has the fluid.
4. motor as claimed in claim 2 further comprises a part and the multiple support for being formed in the stator
The gap between a support construction in structure, and wherein the gap filling has the fluid.
5. motor as described in claim 1, wherein the multiple winding includes multiple heap lap winding and multiple End windings, and
And wherein the motor further comprises shell, the shell is configured to encapsulate the multiple End winding and accommodates the stream
Body is to provide the direct physical contact between the multiple End winding and the fluid.
6. motor as claimed in claim 5 further comprises core, and wherein the shell from the core first
Outer rim extends to the first inner edge to surround multiple ends of the End winding.
One 7. motor as described in claim 1 further comprises container, and in the rotor and the stator or
Two are arranged in the container, wherein the container and one or two of the rotor and the stator limit inside
Volume, and the internal capacity is filled with the fluid.
8. motor as described in claim 1, wherein the fluid further provides in the multiple bare conductor and the motor
Multiple conductive components between insulation.
9. motor as described in claim 1, wherein the rotor includes:
Along the cavity of the length of the rotor；And
Rotor joint institution, the rotor joint institution are configured to recycle the fluid by the cavity.
10. a kind of motor, the motor include:
Stator；
Multiple bare conductors, the multiple bare conductor form multiple windings in the stator；And
Fluid, multiple outer surface direct physical contacts of the fluid and the multiple bare conductor, wherein the fluid is electric exhausted
Edge, and offer is to the direct fluid cooling of the multiple bare conductor and between the continuous bare conductor of the multiple bare conductor
Electrical isolation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/827,335 | 2017-11-30 | ||
| US15/827,335 US10910916B2 (en) | 2017-11-30 | 2017-11-30 | Fluid cooled and fluid insulated electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109861430A true CN109861430A (en) | 2019-06-07 |
| CN109861430B CN109861430B (en) | 2022-03-11 |
Family
ID=66634549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811440591.9A Active CN109861430B (en) | 2017-11-30 | 2018-11-29 | Fluid-cooled and fluid-insulated electric machine |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US10910916B2 (en) |
| CN (1) | CN109861430B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019128714B4 (en) * | 2019-10-24 | 2021-10-21 | Dynamic E Flow Gmbh | External rotor motor with a waveguide winding |
| FR3105631B1 (en) * | 2019-12-18 | 2023-05-26 | Novares France | Stator for electric motor |
| US11492924B1 (en) | 2021-04-26 | 2022-11-08 | General Electric Company Polska sp. z o.o | Embedded electric machine cooling |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057551A (en) * | 1990-06-15 | 1992-01-01 | 通用电气公司 | The liquid cools of rotor |
| CN1202028A (en) * | 1997-05-26 | 1998-12-16 | 株式会社电装 | Alternator for automotive vehicle |
| CN1667918A (en) * | 2004-03-11 | 2005-09-14 | 上海鲍麦克斯电子科技有限公司 | An electromotor with novel cooling structure |
| CN1675814A (en) * | 2002-08-21 | 2005-09-28 | 丰田自动车株式会社 | Vehicle motor |
| US20070138878A1 (en) * | 2005-12-20 | 2007-06-21 | Honeywell International, Inc. | System and method for direct liquid cooling of electric machines |
| US20130147289A1 (en) * | 2011-12-08 | 2013-06-13 | Remy Technologies, Llc | Electric machine module cooling system and method |
| CN103840569A (en) * | 2012-11-21 | 2014-06-04 | 财团法人工业技术研究院 | Stator module and magnetic force generating member thereof |
| CN104716765A (en) * | 2013-12-16 | 2015-06-17 | 三菱电机株式会社 | Rotary electric machine |
| CN104969453A (en) * | 2013-02-04 | 2015-10-07 | 西门子公司 | Electrical machine with direct stator cooling |
| CN105790479A (en) * | 2016-04-05 | 2016-07-20 | 中国船舶重工集团公司第七〇二研究所 | Ship propulsion motor and stator coil winding method thereof |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3049633A (en) * | 1960-08-22 | 1962-08-14 | Gen Electric | Liquid-cooled rotor for dynamoelectric machine |
| DE2037794A1 (en) | 1970-07-30 | 1972-02-03 | Siemens Ag | Liquid-cooled electrical machine, especially turbo generator |
| US3977378A (en) * | 1975-06-30 | 1976-08-31 | General Motors Corporation | Self-controlled vapor heat capsule for engine intake mixture heating |
| DE69727917T2 (en) | 1996-05-29 | 2005-01-27 | Abb Ab | ELECTROMAGNETIC DEVICE |
| ES2319392T3 (en) * | 2001-04-20 | 2009-05-07 | Converteam Ltd | REFRIGERATION OF A WINDING ENTREHIERRO OF ELECTRICAL MACHINES. |
| US8558422B2 (en) * | 2011-03-31 | 2013-10-15 | Caterpillar Inc. | Uniform contained cooling for stator |
| WO2012167274A1 (en) * | 2011-06-03 | 2012-12-06 | Remy Technologies, Llc | Electric machine module cooling system and method |
| EP2702125B1 (en) * | 2011-06-17 | 2019-06-19 | Biosynthetic Technologies, LLC | Dielectric fluids comprising estolide compounds and methods of making and using the same |
| DE202011103647U1 (en) * | 2011-07-25 | 2012-10-29 | Baumüller Nürnberg GmbH | Electric machine |
| US20130033145A1 (en) * | 2011-08-02 | 2013-02-07 | Remy Technologies, Llc | Electric machine module insulation system and method |
| US20130069455A1 (en) * | 2011-09-15 | 2013-03-21 | Colin J. Hamer | Electric machine module cooling system and method |
| WO2013060337A1 (en) * | 2011-10-28 | 2013-05-02 | Vestas Wind Systems A/S | Wind turbine transformer |
| US9099900B2 (en) * | 2011-12-06 | 2015-08-04 | Remy Technologies, Llc | Electric machine module cooling system and method |
| EP2770512B1 (en) * | 2013-02-21 | 2015-09-16 | ABB Technology Ltd | Renewable hydrocarbon based insulating fluid |
| US10770953B2 (en) | 2013-04-03 | 2020-09-08 | Lcdrives Corp. | Liquid cooled stator for high efficiency machine |
| GB2517410A (en) * | 2013-07-16 | 2015-02-25 | Aim Co Ltd | A Stator and a Rotor for an Electric Motor |
| US9601951B2 (en) * | 2013-11-04 | 2017-03-21 | General Electric Company | Modular permanent magnet motor and pump assembly |
| WO2016044570A1 (en) * | 2014-09-18 | 2016-03-24 | Prippel Technologies, Llc | Electric machine end turn cooling apparatus |
| EP3241268A2 (en) | 2014-12-30 | 2017-11-08 | Vestas Wind Systems A/S | Integral fluid cooling of electrical machine field of the invention |
| JP2018504881A (en) | 2015-01-30 | 2018-02-15 | プリペル テクノロジーズ，リミティド ライアビリティ カンパニー | Electromechanical stator with fluid cooling teeth |
| JP2018511295A (en) | 2015-04-10 | 2018-04-19 | ジーイー・アビエイション・システムズ・エルエルシー | Wet cavity electric machine |
| US10211704B2 (en) | 2015-08-29 | 2019-02-19 | Abb Schweiz Ag | Fluid-cooled stator assemblies having multilayer and multifunctional tubing |
-
2017
- 2017-11-30 US US15/827,335 patent/US10910916B2/en active Active
-
2018
- 2018-11-29 CN CN201811440591.9A patent/CN109861430B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057551A (en) * | 1990-06-15 | 1992-01-01 | 通用电气公司 | The liquid cools of rotor |
| CN1202028A (en) * | 1997-05-26 | 1998-12-16 | 株式会社电装 | Alternator for automotive vehicle |
| CN1675814A (en) * | 2002-08-21 | 2005-09-28 | 丰田自动车株式会社 | Vehicle motor |
| CN1667918A (en) * | 2004-03-11 | 2005-09-14 | 上海鲍麦克斯电子科技有限公司 | An electromotor with novel cooling structure |
| US20070138878A1 (en) * | 2005-12-20 | 2007-06-21 | Honeywell International, Inc. | System and method for direct liquid cooling of electric machines |
| US20130147289A1 (en) * | 2011-12-08 | 2013-06-13 | Remy Technologies, Llc | Electric machine module cooling system and method |
| CN103840569A (en) * | 2012-11-21 | 2014-06-04 | 财团法人工业技术研究院 | Stator module and magnetic force generating member thereof |
| CN104969453A (en) * | 2013-02-04 | 2015-10-07 | 西门子公司 | Electrical machine with direct stator cooling |
| CN104716765A (en) * | 2013-12-16 | 2015-06-17 | 三菱电机株式会社 | Rotary electric machine |
| CN105790479A (en) * | 2016-04-05 | 2016-07-20 | 中国船舶重工集团公司第七〇二研究所 | Ship propulsion motor and stator coil winding method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| US20190165652A1 (en) | 2019-05-30 |
| US10910916B2 (en) | 2021-02-02 |
| CN109861430B (en) | 2022-03-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105308832B (en) | Liquid cooled stator for high efficiency machines | |
| US11228215B2 (en) | System of a conductor disposed within an insulator | |
| JP5038596B2 (en) | AC winding with integrated cooling system and method of manufacturing the same | |
| CN109861430A (en) | The motor of fluid cooling and fluid insulation | |
| US20160028284A1 (en) | Electric machine | |
| CA2390335C (en) | Electrical machine with a winding | |
| CN108604842A (en) | For power-weight ratio improve motor electric conductor and for the electrical components of the motor | |
| US7969049B2 (en) | High power density cooling of electrical machines using ceramic tubes of high thermal conductivity | |
| US3261995A (en) | Cooling system for electrical machines | |
| EP3940925A1 (en) | Efficient cooling of electromagnetic coils | |
| US2788456A (en) | Conductor-ventilated generators | |
| EP2621062A1 (en) | Connecting device | |
| EP1228558B1 (en) | Electrical machine comprising a stator with windings | |
| JPH0638422A (en) | Winding structure of stator of motor | |
| US20230112188A1 (en) | Windings for electrical machines | |
| BR102023004227A2 (en) | ELECTRIC MOTOR, AND, METHOD OF MANUFACTURING AN ELECTRIC MOTOR | |
| RU2700274C1 (en) | Electric machine with intensive cooling system | |
| RU2075150C1 (en) | Electric machine | |
| US10153675B2 (en) | Electrical machine | |
| US20230369930A1 (en) | Electrical conductor cooled by phase change material and method for the manufacture thereof | |
| CN117097082A (en) | Cooling system for high density motor | |
| Gouda et al. | Electro-thermal analysis of naturally cooled extra high voltage cable sealing end that provided with heat pipe as cooling method | |
| WO2013152218A1 (en) | Medium voltage heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |